弱碱性树脂吸附分离丙酮酸的特性研究

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弱碱性树脂吸附分离丙酮酸的特性研究

黄少凯; 秦炜; 戴猷元

State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

收稿日期:2007-05-10 修回日期:1900-01-01 出版日期:2007-12-28 发布日期:2007-12-28
通讯作者: 黄少凯

Sorption of pyruvic acid with weakly basic polymer sorbents

HUANG Shaokai; QIN Wei; DAI Youyuan

State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China

Received:2007-05-10 Revised:1900-01-01 Online:2007-12-28 Published:2007-12-28
Contact: HUANG Shaokai

摘要/Abstract

摘要： Uptakes of pyruvic acid for two types of commercially available weakly basic polymer sorbents, D301G and D301R, have been measured over a wide pH range and at various salinities of MgSO4. The results show that the overloading adsorption of pyruvic acid occurs on both weakly basic polymer sorbents, and the overloading models can predict the experimental data of uptake very well. The overloading value for D301G is larger than that for D301R. The adsorption isotherm of pyruvic acid for both polymeric sorbents is greatly affected by the solution pH and MgSO4 concentration in the aqueous phase, and a high recovery efficiency of pyruvic acid from aqueous solution can be obtained at the solution pH around 2.

关键词: pyruvic acid;weakly basic polymer sorbents;adsorption;pH

Abstract: Uptakes of pyruvic acid for two types of commercially available weakly basic polymer sorbents, D301G and D301R, have been measured over a wide pH range and at various salinities of MgSO4. The results show that the overloading adsorption of pyruvic acid occurs on both weakly basic polymer sorbents, and the overloading models can predict the experimental data of uptake very well. The overloading value for D301G is larger than that for D301R. The adsorption isotherm of pyruvic acid for both polymeric sorbents is greatly affected by the solution pH and MgSO4 concentration in the aqueous phase, and a high recovery efficiency of pyruvic acid from aqueous solution can be obtained at the solution pH around 2.

Key words: pyruvic acid, weakly basic polymer sorbents, adsorption, pH

黄少凯, 秦炜, 戴猷元. 弱碱性树脂吸附分离丙酮酸的特性研究[J]. CIESC Journal.

HUANG Shaokai, QIN Wei, DAI Youyuan. Sorption of pyruvic acid with weakly basic polymer sorbents[J]. .

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弱碱性树脂吸附分离丙酮酸的特性研究

Sorption of pyruvic acid with weakly basic polymer sorbents

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